Campanula plant named ‘PKMP11’

ABSTRACT

A new and distinct cultivar of  Campanula  plant named ‘PKMP11’, characterized by its compact plant habit; globular plant form; vigorous growth habit; upright dark violet buds and flowers, and small leaves.

Latin name of genus and species of the plant claimed: Campanulaportenschlagiana Schult.

Variety denomination: ‘PKMP11’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofCampanula plant, botanically known as Campanula portenschlagianaSchult., commonly known as Dalmatian Bellflower, and hereinafterreferred to by the name ‘PKMP11’.

The new Campanula, ‘PKMP11’, is a product of a planned breeding programconducted by the inventor, Christian Hald Madsen, in Søhus, Denmark. Thenew Campanula originated from a population produced from an openpollinated cross made by the inventor in October 2011 with an unnamed,unpatented, proprietary selection as the female parent and a group ofunnamed, unpatented, proprietary selections as possible male parents.The new Campanula ‘PKMP11’ was discovered and selected by the inventorin October 2012 as a single flowering plant within the progeny of thestated population in a controlled environment in Søhus, Denmark. Theinventor selected ‘PKMP11’ on the basis of its compact and freelyflowering plant habit and dark purple flowers.

Asexual reproduction of the new Campanula cultivar by terminal cuttingshas demonstrated that the combination of characteristics as hereindisclosed for the new cultivar are firmly fixed and retained throughsuccessive generations of asexual reproduction. The new cultivarreproduces true-to-type.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘PKMP11’. These characteristics incombination distinguish ‘PKMP11’ as a new and distinct cultivar:

-   -   1. Upright plant habit with short upright stems.    -   2. Bushy globular plant form.    -   3. Vigorous growth habit, but still needing less chemical growth        retardation.    -   4. Dark violet flowers.    -   5. No need for vernalization

Plants of the cultivar ‘PKMP11’ can be compared to the Campanulaportenschlagiana Schult., cultivar ‘PKMP05’ (patented, U.S. Plant Pat.No. 17,188). In side-by-side comparisons conducted by the inventor inSøhus, Denmark, plants of the instant cultivar ‘PKMP11’ and plants ofthe cultivar ‘PKMP05’ differ in the following characteristics:

-   -   1. Plants of ‘PKMP11’ have darker buds and flowers than plants        of ‘PKMP05’.    -   2. Plants of ‘PKMP11’ have fewer flower buds than ‘PKMP05’.    -   3. Plants of ‘PKMP11’ have a purple stigma compared to the white        of ‘PKMP05’

Data on the plants of the parent varieties are no longer available forcomparison with plants of the new cultivar Campanula ‘PKMP11’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearanceof the new Campanula ‘PKMP11’, showing the colors as true as it isreasonably possible to obtain in colored reproductions of this type.Colors in the photographs may differ slightly from the color valuescited in the detailed botanical description, which more accuratelydescribe the actual colors of ‘PKMP11’. Plants in the photographs areshown at 4 months after propagation.

FIG. 1 comprises a side perspective view of a typical flowering plant ofPKMP11 grown in a 10.5 cm pot.

FIG. 2 comprises a close-up view of inflorescence of PKMP11.

FIG. 3 is a comparison view of a typical flowering plant of PKMP11 witha typical flowering plant of PKMP05.

DETAILED BOTANICAL DESCRIPTION

The new Campanula ‘PKMP11’ has not been observed under all possibleenvironmental conditions. The phenotype of the new cultivar may varywith variations in environment such as temperature, light intensity, daylength, and fertility level without any variance in genotype.

The aforementioned photographs, together with the followingobservations, measurements and values describe plants of the newCampanula ‘PKMP11’ as grown under greenhouse conditions.

The age of the ‘PKMP11’ plants described is 4 months after propagation.Color references are made to The Royal Horticultural Society ColourChart (R.H.S.), 5^(th) edition, 2007, except where general colors ofordinary significance are used.

-   Classification:    -   -   Botanical.—Campanula portenschlagiana Schult.-   Parentage:    -   -   Female or seed parent.—Campanula portenschlagiana Schult            unnamed, unpatented, proprietary selection.        -   Male or pollen parent.—Campanula portenschlagiana Schult            unnamed, unpatented, proprietary selection.-   Propagation:    -   -   Type cutting.—Terminal vegetative cuttings.        -   Time to initiate roots.—About 10 to 14 days at 18 to 21° C.            in tunnels in a greenhouse.        -   Root description.—Fine, well branched.-   Plant description:    -   -   Form.—Perennial, rosette plant with upright plant habit.            Campanulate flowers in panicles. Freely branching with            lateral branches forming at every node; dense and bushy.        -   Crop time.—After rooting, about 14 weeks are required to            produce finished flowering plants in 10.5 cm pots.        -   Plant height(from soil level to top of plant plane).—About            15 cm.        -   Vigor.—Vigorous growth rate.-   Lateral branches (stem):    -   -   Number.—More than 50 per plant; equal to number of            inflorescences at base.        -   Length.—Up to 18 cm.        -   Diameter.—3-4 mm.        -   Internode length.—Up to 3 cm.        -   Strength.—Moderate.        -   Color.—RHS 144D.        -   Pubescence.—None.        -   Texture.—Glabrous.        -   Lactate.—Present, small amounts; color RHS 155D.-   Foliage description:    -   -   Leaf shape.—Single, dentate, cordate, palmate venation.        -   Leaf length.—Up to 20 mm.        -   Leaf width.—Up to 28 mm.        -   Apex.—Rounded.        -   Base.—Cordate.        -   Margin.—Broadly dentate, weakly waved.        -   Texture (upper and lower surfaces).—Glabrous, little            succulent.        -   Color.—Upper Surface, RHS N137A, Green. Lower Surface,            between RHS 137BC (Green) and RHS 191A (greyed green).        -   Venation color.—Lighter green than leaf blade, but areas too            small to determine RHS values.        -   Venation pattern.—Reticulate.        -   Variegation.—Absent.        -   Number per lateral branch.—Up to 15.        -   Arrangement.—Alternate.        -   Petiole length.—Up to 6 cm.        -   Petiole diameter.—1-2 mm.        -   Petiole color.—Between 143C and 144B.-   Inflorescence description:    -   -   Flower arrangement and shape.—Single, upright, campanulate            flowers in panicles with up to three flowers at lateral            branches, flowers with small star shaped calyx.        -   Natural flowering season.—Continuous throughout spring and            summer. Season can be extended through long day treatments,            no vernalization needed.        -   Flower longevity.—Individual flowers up to three weeks.            Flowers persistent.        -   Inflorescence size.—Length: up to 13 cm.        -   Buds.—Length: Approximately 15 mm before opening. Diameter:            2-3 mm. Color: between RHS N87A and RHS N82A, violet. Shape:            Ovate to Ellipsoid.        -   Flowers.—Length: About 20 mm. Diameter: About 28 mm. Number            per inflorescence: Up to 15.        -   Corolla.—Length of tube: 17 mm. Length of lobe: 10 mm. Width            of lobe: 6 mm. Tip of lobe: acute. Curvature: Moderate to            strongly reflexing.        -   Corolla color.—Upper and Lower surfaces, between RHS N87A            and RHS N82A, violet. Petal Number: 5. Petal Shape: Fused at            base to form Corolla. Petal Margin: Entire. Petal Texture:            Glabrous (both surfaces). Fragrance: None.        -   Petaloid lobes.—Absent.        -   Sepals.—Arrangement: Free and sessile. Quantity per            flower: 5. Length: 5 mm. Width: 2 mm. Overall shape:            Triangular. Tip: Acute. Margin: Entire. Color (mature and            immature): Upper and lower surfaces: Green and purple,            colors mixed and diffuse but purple is more prominent at tip            and margins (areas too small to determine R.H.S. values).            Texture: Glabrous. Pedicel: Length: up to 20 mm. Diameter:            About 1 mm. Color: RHS 144A, yellow-green. Upper part can be            purple.-   Reproductive organs:    -   -   Gynoecium.—Pistil and Stigma: Length: Approximately 2 cm.            Shape: Conspicuous Tripartite. Color: RHS N85A, violet.            Ovary: Color: RHS 144D. Style: Length: Approximately 2 mm            shorter than Pistil. Color: RHS N85A, violet and dusted with            pollen.        -   Androecium.—Stamen: Number: 5. Anther: Length: 3-4 mm.            Diameter: Less than 1 mm. Color: Pale Yellow; dusted with            pollen (areas too small to determine R.H.S. value). Pollen:            Amount: Moderate to Abundant. Color: Pale yellow (too small            to determine R.H.S. value).-   Temperature tolerance: ‘PKMP11’ is considered a winter-hardy    perennial in Denmark; not tested with respect to other hardiness    zones.-   Pest/disease resistance/susceptibility: Not tested.

I claim:
 1. A new and distinct cultivar of Campanula plant named‘PKMP11’, as illustrated and described herein.